At wits end! 05 Tahoe5.3 Hydroboost Brks. Loud squeak from Combination Valve when sharply braking.

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Mike Jones

TYF Newbie
Joined
Apr 25, 2020
Posts
2
Reaction score
0
Thanks for reading.

It's a 2005, Tahoe 1500 4x4, all-around-disc, with hydroboost brakes, that makes a loud squeak from the comination/proportional valve when the brakes are stomped on; hard and quickly. The sound is 100% certainly emitting from the combo valve. It makes the sound whether the engine is running or not, and whether the truck is moving or sitting still. The brakes perform well; there is no skidding of the rear tires when panic stopping. The only issue is the loud squeak from the valve. I scoured the web for hours and came up with nothing. Is anyone familiar with this issue who can shed some much needed light here? Much appreciated.


Mike
 
OP
OP
Mike Jones

Mike Jones

TYF Newbie
Joined
Apr 25, 2020
Posts
2
Reaction score
0
Some further findings, in case others experience this issue. There is a fitting several inches away- up a hard line- that appears to vibrate/resonate slightly more than the combination valve proportional valve. The cause here may be an internal restriction in the line/fitting.
 

Forum statistics

Threads
133,342
Posts
1,883,957
Members
98,433
Latest member
pickegs
Top